[FFmpeg-devel] [PATCH] libavfilter/af_ambisonic.c Added File for Ambisonic Filter
adf.lists at gmail.com
Sat Mar 11 12:53:31 EET 2017
Paul B Mahol wrote:
> On 3/11/17, Andy Furniss <adf.lists at gmail.com> wrote:
>> Sanchit Sinha wrote:
>>> libavfilter/af_ambisonic.c | 139
>>> + w=(float *)(*(in->extended_data)+itr);
>>> + x=(float *)(*(in->extended_data+1)+itr);
>>> + y=(float *)(*(in->extended_data+2)+itr);
>>> + *lf = root8 * (2*(*w)+*x+*y);
>>> + *lb = root8 * (2*(*w)-*x+*y);
>>> + *rb = root8 * (2*(*w)-*x-*y);
>>> + *rf = root8 * (2*(*w)+*x-*y);
>> Seems a bit misleading to call something ambisonic if all it will
>> do is 2d, so partial b-format to (square?) 4 channel.
>> Why not be more specific in the name so the limitation is clear.
> This is just for qualification task. Later filter willl be extended.
> It will not be applied as is in tree.
A complicated subject.
Sanchit, in case you don't know, some of the people who were around at
the birth of ambisonics, plus ambdec author can be found on the list -
More information about the ffmpeg-devel